How to improve the production efficiency and product quality of twin-screw extruder

How to improve work efficiency of twin-screw #extruder:

Improving work efficiency is one of the vital goals of the development, design and development of a new type of rotating twin-screw #extruder in the same direction. It can also be done by increasing the screw speed and improving the plasticization and mixing level.At the same screw speed, expanding the depth of the screw groove can greatly increase the conveying capacity.In contrast, the plasticization and mixing level of the screw must also be expanded, which requires the screw to be able to withstand higher torque.

At high screw speeds, the residence time of the material in the #extruder is reduced, which may cause the material to be plasticized and melted, and the mixing is not sufficient.Therefore, the length of the screw must be appropriately increased, which in turn is bound to cause the twin-screw #extrusion machine to actually carry an increase in torque and power.

Expanding the free volume of the screw groove is also a vital factor.In the feeding section and the devolatilization section, it is very necessary for the threaded element to have a large free volume. For bulk density materials, expanding the free volume of the feeding section and the degree of filling of the material in the screw groove can greatly improve the processing capacity of the #extruder.

To increase the torque and speed, the deceleration distribution box needs to be carefully designed.To greatly improve the torque index of the equipment, it will definitely put forward higher requirements for the design and manufacturing level of the transmission box.

How to improve product quality of twin-screw #extruder：

The plasticization system mainly includes a screw and a barrel. In order to meet the requirements of various types of production and processing, the screw and barrel are generally designed as a building block combination structure.According to the role of each section, the screw can be divided into feeding section, plasticizing section, mixing section, exhaust section and #extrusion section.These sections have different roles in the #extrusion process, their structures are not the same, and the geometric parameters of the screw components corresponding to them are also different. Therefore, how to determine the geometric parameters of the threaded components has become the key to the design of the plasticization system.

Using the three-dimensional solid modeling function of large-scale computer-aided design scheme (CAD) software, a twin-screw geometric modeling program is compiled to realize the three-dimensional solid graphic display of the twin-screw, and the geometric parameters of various types and specifications of self-cleaning threaded elements are obtained, and the meshing of the two screws is checked.

With the help of a computer, a three-dimensional solid shape of a twin screw with gaps has been completed, which can be used to check whether the gaps between the two screws are uniform, so that the material has no dead ends in the movement of the screw, that is, to ensure that the screw has a strong self-cleaning ability, which can efficiently prevent the material from staying in the machine for too long and degrading, which undoubtedly provides a good means of production and processing for the production and manufacture of high-end and high-quality plastic products.